EP 1532838 A4 20051123 - ELECTRO-DYNAMIC PLANAR LOUDSPEAKERS
Title (en)
ELECTRO-DYNAMIC PLANAR LOUDSPEAKERS
Title (de)
ELEKTRODYNAMISCHE PLANARE LAUTSPRECHER
Title (fr)
HAUT-PARLEURS PLANAIRES ELECTRO-DYNAMIQUES
Publication
Application
Priority
- US 0313763 W 20030502
- US 38000102 P 20020502
- US 37818802 P 20020506
- US 39113402 P 20020624
- US 44369903 P 20030130
Abstract (en)
[origin: WO03094571A2] Electro-dynamic loudspeakers typically include a diaphragm having a conductor applied to one of its surfaces. The diaphragm is secured to a frame. The conductor is connected to a power supply for providing electrical current through linear traces of the conductor that interact with magnetic fields generated by magnets that are mounted to the frame. The diaphragm is driven by a motive force created when current passes through the conductor within the magnetic field. The electrical current is varied to create an acoustical output from the electro-dynamic loudspeaker.
IPC 1-7
IPC 8 full level
B60R 11/02 (2006.01); H04R 1/06 (2006.01); H04R 1/28 (2006.01); H04R 5/02 (2006.01); H04R 7/02 (2006.01); H04R 7/04 (2006.01); H04R 7/18 (2006.01); H04R 9/00 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01); H04R 11/02 (2006.01); H04R 31/00 (2006.01); H04R 1/02 (2006.01); H04R 9/06 (2006.01)
CPC (source: EP KR)
B60R 11/0223 (2013.01 - EP); H04R 1/06 (2013.01 - EP KR); H04R 7/18 (2013.01 - EP KR); H04R 9/025 (2013.01 - EP KR); H04R 9/047 (2013.01 - EP KR); H04R 9/06 (2013.01 - KR); H04R 31/006 (2013.01 - EP KR); B60R 11/0217 (2013.01 - EP); B60R 11/0235 (2013.01 - EP); H04R 1/025 (2013.01 - EP); H04R 1/026 (2013.01 - EP); H04R 7/04 (2013.01 - EP); H04R 9/06 (2013.01 - EP); H04R 31/003 (2013.01 - EP); H04R 2201/34 (2013.01 - EP); H04R 2400/11 (2013.01 - EP); H04R 2499/13 (2013.01 - EP KR)
Citation (search report)
- [X] US 2566604 A 19510904 - EAVES WILLIAM C
- [X] DE 3033631 A1 19820429 - KRUPP GMBH [DE]
- [X] DE 1799329 U 19591105 - DEUTSCHE EDELSTAHLWERKE AG [DE]
- [A] DE 3038905 A1 19820527 - BLAUPUNKT WERKE GMBH [DE]
- [A] US 4210786 A 19800701 - WINEY JAMES M [US]
- [A] US 4037061 A 19770719 - VON RECKLINGHAUSEN DANIEL R
- [A] EP 1158835 A2 20011128 - FURUKAWA ELECTRIC CO LTD [JP], et al
- [A] GB 2034153 A 19800529 - VICTOR COMPANY OF JAPAN
- [X] US 5682436 A 19971028 - SAKAMOTO YOSHIO [JP], et al
- [X] EP 1194001 A1 20020403 - FPS INC [JP]
- [A] US 4939784 A 19900703 - BRUNEY PAUL F [US]
- [X] US 3674946 A 19720704 - WINEY JAMES M
- [A] EP 0996311 A1 20000426 - SONIC WINDOW KABUSHIKI KAISHA [JP]
- [X] US 3164686 A 19650105 - TIBBETTS GEORGE C
- [X] WO 9524815 A1 19950914 - SMITH JONATHAN NEIL [GB]
- [X] PATENT ABSTRACTS OF JAPAN vol. 007, no. 033 (E - 157) 9 February 1983 (1983-02-09)
- [X] PATENT ABSTRACTS OF JAPAN vol. 003, no. 098 (E - 131) 18 August 1979 (1979-08-18)
- [YA] PATENT ABSTRACTS OF JAPAN vol. 003, no. 121 (E - 143) 11 October 1979 (1979-10-11)
- [Y] PATENT ABSTRACTS OF JAPAN vol. 013, no. 551 (E - 857) 8 December 1989 (1989-12-08)
- [Y] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 04 30 April 1997 (1997-04-30)
- See references of WO 03094571A2
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 03094571 A2 20031113; WO 03094571 A3 20040212; AU 2003228820 A1 20031117; AU 2003228820 A8 20031117; CN 101877809 A 20101103; CN 101877809 B 20130612; CN 101977340 A 20110216; CN 101977341 A 20110216; CN 101982985 A 20110302; CN 101982985 B 20150225; CN 103546857 A 20140129; CN 103546857 B 20180424; CN 1663322 A 20050831; CN 1663322 B 20110316; EP 1532838 A2 20050525; EP 1532838 A4 20051123; EP 1532838 B1 20171025; JP 2005525031 A 20050818; JP 2006050665 A 20060216; JP 2006054917 A 20060223; JP 2006060851 A 20060302; JP 2010178376 A 20100812; JP 4713285 B2 20110629; JP 4856918 B2 20120118; JP 5002033 B2 20120815; KR 100980351 B1 20100906; KR 20040111569 A 20041231; KR 20090122404 A 20091127
DOCDB simple family (application)
US 0313763 W 20030502; AU 2003228820 A 20030502; CN 03813960 A 20030502; CN 200910246340 A 20030502; CN 200910246341 A 20030502; CN 200910246342 A 20030502; CN 200910246343 A 20030502; CN 201310559770 A 20030502; EP 03726592 A 20030502; JP 2004502676 A 20030502; JP 2005271158 A 20050916; JP 2005271159 A 20050916; JP 2005271160 A 20050916; JP 2010089902 A 20100408; KR 20047017643 A 20030502; KR 20097023156 A 20030502